[jira] [Created] (SOLR-16736) Replace commons-lang3 usages with Java

["Kevin Risden (Jira)" <ji...@apache.org>]

Kevin Risden created SOLR-16736:
-----------------------------------

             Summary: Replace commons-lang3 usages with Java
                 Key: SOLR-16736
                 URL: https://issues.apache.org/jira/browse/SOLR-16736
             Project: Solr
          Issue Type: Task
      Security Level: Public (Default Security Level. Issues are Public)
            Reporter: Kevin Risden
            Assignee: Kevin Risden


Done as separate commits:
* Remove `org.apache.commons.lang3.RandomStringUtils`
* Remove `StringUtils#join`
* Replace `StringUtils.leftPad`
* Replace `ArrayUtils#toPrimitive`
* Replace `StringUtils#repeat`
* Misc replacements (startsWith and isEmpty)
* Replace `StringUtils#split`
* Replace `ArrayUtils.toObject`
* Remove `org.apache.commons.lang3.SystemUtils`
* Remove `ArrayUtils.isEmpty` and `ArrayUtils.isNotEmpty`
* Replace `StringUtils#equals`
* Replace `StringUtils.isEmpty` and `StringUtils.isNotEmpty`
* Replace commons-lang3 builders (hashcode, equals)
* Remove `startsWith` / `endsWith`
* Replace `StringUtils.default*`
* Replace `NumberUtils.isCreatable`
* Replace `StringUtils.countMatches`
* Replace `ArrayUtils.add`
* Replace `StringUtils.contains`
* Migrate remaining usages to helper methods and forbid new usages of commons-lang3

This is NOT ready for review yet. This just works down the list of commons lang3 usages and tries to replace them with JDK methods where possible.

These are remaining:
* `LocaleUtils` - is there a good replacement? JDK Locale Builder does not work. Moved to LocaleUtils helper class
* `Object hostnameVerifier = FieldUtils.readField(sslSocketFactory, "hostnameVerifier", true);` - moved to standalone method
* `StringUtils.containsIgnoresCase` - This should be replaceable.
* `FastDateFormat` used in HDFS tests

```
# git grep -F org.apache.commons.lang3 -- solr
solr/core/src/java/org/apache/solr/request/SubstringBytesRefFilter.java:    return org.apache.commons.lang3.StringUtils.containsIgnoreCase(str, searchStr);
solr/core/src/java/org/apache/solr/util/LocaleUtils.java:    return org.apache.commons.lang3.LocaleUtils.toLocale(locale);
solr/modules/hdfs/src/test/org/apache/solr/hdfs/cloud/HdfsTestUtil.java:      org.apache.commons.lang3.time.FastDateFormat.getInstance().format(System.currentTimeMillis());
solr/solrj/src/test/org/apache/solr/client/solrj/impl/HttpClientUtilTest.java:      return org.apache.commons.lang3.reflect.FieldUtils.readField(
```



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